Question

Center & Radius of circle?

(x+1)^2+(y+7)^2=36

Answer 1

the radius is the square root of the number after the equal sign: 36. the square root of 36 is 6
so the radius is 6
if you wanna find the center you find what makes each of the squared parts zero:
(x+1)^2=0 & (y+7)^2 --> x=-1, y=-7 --> center: (-1,-7)

Answer 2

Sierra/Pietra/BLEH/Layla/whoever else ~ Please pick one name and keep it. Playing name games and answering yourself is childish.